“But from the beginning you’ve been,” Williams posted. ”Always there my old friend True until the end of time.”

He added to Jarreau: “I will miss you.”

Alwin Lopez Jarreau was born on March 12, 1940 in Milwaukee.

The Grammy winner got his bachelor’s and master’s degrees from Ripon College and the University of Iowa, in 1962 and 1964 respectively, before taking a job as a counselor for the disabled in San Francisco.

Jarreau moonlighted, singing in jazz clubs, before deciding in 1968 to make music his full-time gig.

“His second priority in life was music. There was no third,” according to a statement on Jarreau’s website on Sunday. “His first priority, far ahead of the other, was healing or comforting anyone in need.”

Jarreau is survived by his wife, Susan, and a son, Ryan.

They’ve asked that, In lieu of flowers or gifts, that fans donate to the Wisconsin Foundation for School Music.